Resistors combinations.
Combination of resistors Resistors can be connected Serially or in parallel Combinations, to get a desired value. Serial combination of resistors In a serial connection the resultant resistance will be calculated by adding the resistance values of all the resistors in the combination. R = r1+r2+r3+r4..... Suppose the r1 is 50 and r2 is 100 then resultant resistance of resistors will be 50+100= 150. Resistors in serial combination Image credit goes to wikiMedia Parallel combination of resistors In a parallel combination, the resultant value of resistance can be calculated by an equation 1/R = 1/r1 +1/r2+1/r3+1/r4............ If two 100 ohm resistors conned in parallel, what will be the combined resistance in the circuit? Let us find it, here r1=100 ans r2= 100 then 1/R=1/100+1/100=2/100 . ie 1/R=2/100 so R=100/2 =50 Ohms Resistors in parallel combination
